*Roderick (m) - St Rodericus (one of the 48 Martyrs of Cordoba - March 13)
*Roger (m) - St Roger (one of the 48 Martyrs of Cordoba - September 16)
*Ronald (m) - St Reinold (Martyr at Pantaleon Monastery in Germany - January 7)
*Rowan (m) - St Ruadhán of Lorrha
*Rowena (f) - St Ruadhán of Lorrha